Erbijsommen t/m 1.000
Optellen
| 1. | 489 + 283 = |
823
|
772
|
997
|
619
|
| 2. | 451 + 282 = |
502
|
871
|
733
|
628
|
| 3. | 474 + 391 = |
865
|
731
|
585
|
543
|
| 4. | 370 + 296 = |
782
|
664
|
801
|
666
|
| 5. | 246 + 168 = |
414
|
411
|
294
|
426
|
| 6. | 440 + 203 = |
562
|
652
|
643
|
877
|
| 7. | 436 + 158 = |
677
|
829
|
594
|
525
|
| 8. | 365 + 344 = |
695
|
709
|
926
|
524
|
| 9. | 345 + 339 = |
656
|
684
|
789
|
632
|
| 10. | 396 + 219 = |
547
|
591
|
615
|
977
|
| 11. | 374 + 254 = |
816
|
909
|
763
|
628
|
| 12. | 261 + 260 = |
671
|
868
|
698
|
521
|